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Finding the Fourth Proportional to 556,923.32, 768,554.94 and 302,274.54

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Solution

The fourth proportional to 556,923.32, 768,554.94 and 302,274.54 is: 417,139.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,923.32 : 768,554.94 = 302,274.54 : x
  2. Step 2: Convert to fraction form
    556,923.32/768,554.94 = 302,274.54/x
  3. Step 3: Cross multiply
    556,923.32x = 768,554.94 × 302,274.54
  4. Step 4: Simplify right side
    556,923.32x = 232,314,590,953.23
  5. Step 5: Solve for x
    x = 232,314,590,953.23/556,923.32
  6. Step 6: Final answer
    x = 417,139.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.